Home / 18,591.94-25,647.87-12,309.58

Finding the Fourth Proportional to 18,591.94, 25,647.87 and 12,309.58

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Solution

The fourth proportional to 18,591.94, 25,647.87 and 12,309.58 is: 16,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.94 : 25,647.87 = 12,309.58 : x
  2. Step 2: Convert to fraction form
    18,591.94/25,647.87 = 12,309.58/x
  3. Step 3: Cross multiply
    18,591.94x = 25,647.87 × 12,309.58
  4. Step 4: Simplify right side
    18,591.94x = 315,714,507.59
  5. Step 5: Solve for x
    x = 315,714,507.59/18,591.94
  6. Step 6: Final answer
    x = 16,981.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.